// JavaScript Document

$(document).ready(function() {

  $('#sidebar  img.other').each(function() {
	var imgFile = $(this).attr('src');
	var preloadImage = new Image();
	var imgExt = /(\.jpg$)/;
	 preloadImage.src = imgFile.replace(imgExt,'b$1');
	 
	 $(this).hover(
		function() {
			$(this).attr('src', preloadImage.src);
		},
		function () {
			$(this).attr('src', imgFile).addClass('other');
		});//end hover
	});//each  
});//end ready